Host Ben Kieffer talks with Ambassador Mary Kramer. Kramer is speaking at the University of Northern Iowa this afternoon about the increasing polarization of American politics. Kramer served in the Iowa Senate representing West Des Moines from 1991-2003. She was nominated by President George W. Bush to become U.S. Ambassador to Barbados and the Eastern Caribbean in 2003. Later in the hour, we talk with the Democratic candidate for U.S. Senate, Roxanne Conlin. Conlin is a Des Moines trial attorney and former U.S. Attorney for the Southern District of Iowa. She is challenging five-term Republican incumbent Chuck Grassley.